This is a simple API to access Amazon's SQS, EC2, SimpleDB and DevPay LS web services. It uses the QUERY interfaces and patterns the methods after those available from Amazon in their SOAP client for these services.
Celery, flexible ecommerce solution provider, allows users to accept pre-orders without charging the customer until the product is ready to ship. On the flip side, customers also have the capability to pre-pay for goods and services. In addition to flexible payment options, Celery allows developers to integrate its functionality with third party apps and workflows via the Celery API.